Results 51 to 60 of about 6,973 (235)

Surface Modification of Stainless Steel Using an Atmospheric Pressure Plasma Arc Driven by an External Transverse- Alternating Magnetic Field

Chemical Engineering Transactions, 2015
An experimental cleaning system for surface modification was developed. It consisted of a plasma torch with a DC power supply to generate an atmospheric pressure plasma arc, two field coils with an AC power supply to generate an external transverse ...
X.J. Dong, J.B. Meng, X.T. Wei, W.H. Liu
doaj   +1 more source

Change in surface properties of tooth under cold atmospheric plasma impact

Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2020
The article presents the results of experimental studies of the wetting angle of the tooth surface after treatment in the plasma of a dielectric barrier discharge at atmospheric pressure.
A. V. Aksyuchits, D. A. Kotov, A. N. Osipov, V. Ch. Nedel   +3 more
doaj   +1 more source

Surface Modification of Silicon Carbide Wafers Using Atmospheric Plasma Etching: Effects of Processing Parameters

Micromachines, 2023
Silicon carbide wafer serves as an ideal substrate material for manufacturing semiconductor devices, holding immense potential for the future. However, its ultra-hardness and remarkable chemical inertness pose significant challenges for the surface ...
Qi Jin, Julong Yuan, Jianxing Zhou
doaj   +1 more source

Triage and care for women with symptoms or diagnosis of pregnancy loss between 14 + 0 and 21 + 6 weeks' gestation

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Mid‐trimester pregnancy loss (MTL), defined as a pregnancy loss occurring between 14 + 0 and 21 + 6 weeks of gestation, causes significant physical and emotional distress to women and presents clinical challenges to healthcare professionals. It is acknowledged that in low‐resource settings, this guideline might be applicable to births up to 28 
Caroline E. Fox, Rosinder Kaur, Kugajeevan Vigneswaran, Rachel Small, Jenny Carter, Keelin O'Donoghue, Alexander E. P. Heazell, Anna L. David, Nigel Simpson, Angharad Care, Lisa Starrs, Andrew Shennan, Catalina María Valencia González, Priya Soma‐Pillay, Leah Fitzsimmons, Adam J. Devall, Arri Coomarasamy, Mid‐trimester Pregnancy Loss Guideline Consensus Panel, Owen Arthurs, Ruth Bender‐Atik, Phil Bennett, Kirstien Boelaert, Elizabeth Bonney, Leanna Brace, Naomi Carlisle, Davide Casagrandi, Manju Chandiramani, Carolyn Chiswick, Alexandra Emms, Stella Fielder, James Goadsby, Laura Goodfellow, Jim Gray, Jemma Johns, Emma Kirk, Will Lester, Sophie Mackay, Maria Memtsa, Katie Morris, Sunbal Mukhtar, Naimah Raza, Rita Sarquis, Neil Sebire, Lucy Smith, Lucy Spencer, Amos Tetteh, Natalie Woodhead   +46 more
wiley   +1 more source

Lower Plasma Antioxidant Defense and Heat Shock Proteins Mark Intra‐Amniotic Sludge Ultrasound Finding

Journal of Ultrasound in Medicine, EarlyView.
Objectives Intra‐amniotic sludge is an independent risk factor for preterm birth. It consists of a biophysical sonographic finding in the amniotic fluid, formed by dense echogenic particles near the cervical internal orifice, due to sterile or infectious inflammatory processes.
Clarissa Chavez Ortiz Roberto, Lílian Corrêa Costa‐Beber, Lucas Machado Sulzbacher, Jaíne Borges dos Santos, Anna Karolina Kretschmann Florencio de Souza Bagetti, Eduardo Becker Jr, Matias Nunes Frizzo, Thiago Gomes Heck, Mirna Stela Ludwig   +8 more
wiley   +1 more source

Direct Ambient Mass Spectrometry for Food, Beverage, and Agricultural Sample Analysis and Research

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Ambient and direct mass spectrometry (MS) methods are becoming increasingly used for the rapid analysis of food, beverage and agricultural samples. Novel ionization approaches combined with targeted, or untargeted workflows provide analytical outcomes within a greatly reduced time period compared to traditional separation science coupled with ...
Leigh M. Schmidtke, Liang Jiang, Morphy Dumlao, William A. Donald   +3 more
wiley   +1 more source

Key Physicochemical Parameters Influencing Reactive Species in Plasma‐Processed‐Air (PPA) Originated From Microwave Discharge

Plasma Processes and Polymers, EarlyView.
NO, NO2 and N2O4 were identified in plasma processed air (PPA) by FTIR spectroscopy. NO2 was the dominant long‐living specie with maximum concentration of 10 520 ppm. Critical flowrate is 1.5 SLM for the maximum NOx concentration. A prediction model of NOx generation was made based on specific input energy (SIE).
Yijiao Yao, Thomas Weihe, Jörg Stachowiak, Jörg Ehlbeck, Uta Schnabel, Kimon‐Andreas Karatzas   +5 more
wiley   +1 more source

Sourcing carnelian beads from the ancient Mesopotamian site of Kish, Iraq, 2450–2200 BCE: Stylistic, technological and geochemical approaches

Archaeometry, EarlyView.
Abstract Trade between Mesopotamia and the Indus Civilization is studied through the analysis of Early Dynastic III Period (2600–2350 BCE) carnelian beads from the site of Kish, Iraq. Morphological and technological features of the beads are compared with beads from the Indus region.
J. Mark Kenoyer, Randall W. Law, Laure Dussubieux   +2 more
wiley   +1 more source

Numerical Modeling of Torch Design for Plasma Atomization

Acta Physica Polonica A, 2018
© 2018 Polish Academy of Sciences Institute of Physics. All rights reserved.In this study, internal geometry of a non-transferred plasma torch was investigated for plasma atomization. Numerical analysis was performed by a computational fluid dynamics approach for the plasma jet formation.
Yurtkuran, E., Unal, R., Ozsunar, A.
openaire   +4 more sources

CHARACTERISATION OF PLASMAS PRODUCED BY THE "TORCHE A INJECTION AXIALE"

Proceeding of Progress in Plasma Processing of Materials 1997, 2023
Two different kinds of plasmas created by the microwave driven Torche a' Injection Axiale (TIA) are investigated: one with helium and the other with argon as the main gas. By using abs. line intensity measurements, the densities of the excited states are detd. Applying the ideal gas law gives the ground state d.
Jonkers, J., Selen, L.J.M., Mullen, van der, J.J.A.M., Timmermans, E.A.H., Schram, D.C.   +4 more
openaire   +3 more sources